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Subject[PATCH 0/4] A few cleanup and fixup patches for migration
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Hi everyone,
This series contains a few patches to remove unneeded lock page and
PageMovable check, reduce the rcu lock duration. Also we fix potential
pte_unmap on an not mapped pte. More details can be found in the
respective changelogs. Thanks!

---
v1:
rebase [1] on mainline.

[1] https://lore.kernel.org/lkml/20220304093409.25829-2-linmiaohe@huawei.com/T/
---
Miaohe Lin (4):
mm/migration: reduce the rcu lock duration
mm/migration: remove unneeded lock page and PageMovable check
mm/migration: return errno when isolate_huge_page failed
mm/migration: fix potential pte_unmap on an not mapped pte

include/linux/migrate.h | 2 +-
include/linux/swapops.h | 4 ++--
mm/filemap.c | 10 +++++-----
mm/hugetlb.c | 2 +-
mm/migrate.c | 31 +++++++++++++------------------
5 files changed, 22 insertions(+), 27 deletions(-)

--
2.23.0

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